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To understand the biology and evolution of ruminants, the cattle genome was sequenced to about sevenfold coverage. The cattle genome contains a minimum of 22,000 genes, with a core set of 14,345 orthologs shared among seven mammalian species of which 1217 are absent or undetected in noneutherian (marsupial or monotreme) genomes. Cattle-specific evolutionary… (More)
Ovine placental lactogen (oPL) is structurally similar to PRL, is a product of the chorionic epithelium, and has been implicated in playing a supportive role in fetal growth. This study examined the concentration and cellular location of oPL mRNA at five stages of pregnancy (days 60, 90, 105, 120, and 135) in 21 cross-bred ewes, and results were compared to… (More)
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Ovine placental lactogen (oPL) exerts actions in sheep and rodent fetal tissues that growth hormone (GH) does not. However, in postnatal tissues, both oPL and GH possess these activities. Although a high-affinity binding site for oPL in ovine fetal liver has been reported, some investigators believe this to be the GH receptor. It was our objective to… (More)